4.200 MLS Head Gasket .040 - SBF SVO

The 4.200 MLS Head Gasket .040 - SBF SVO from Cometic Gaskets is designed for Small Block Ford engine builders and performance enthusiasts who require reliability under high compression and boost conditions. This multi-layer steel (MLS) gasket is specifically engineered for SBF SVO applications, ensuring the seal integrity necessary for aggressive cam profiles, forced induction, or high-RPM setups.

Constructed with multiple layers of spring-tempered steel, this gasket maintains consistent clamp load across the combustion chamber, cylinder walls, and coolant passages, which is critical for preventing blow-by and coolant leaks. The .040-inch thickness provides an optimal compression ratio while ensuring sufficient material density for durability under demanding conditions. The gasket's design accommodates the SVO's unique bore spacing and combustion chamber geometry, promoting precise alignment with the cylinder head and block deck surface.

This precision fit minimizes the risk of head lift during peak cylinder pressures, a common failure point in stock gaskets under forced induction or nitrous oxide applications. Builders working with 4.200-inch bore SBF engines, including turbocharged, supercharged, and high-compression naturally aspirated setups, will find this gasket to be a reliable choice for their performance builds.